package com.appspot.eusms.util;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.preference.PreferenceManager;

public class VersionTracker {

    private static final String LAST_VERSION_CODE = "last_version_code";

    public static int getLastSeenVersion(Context context) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        return preferences.getInt(LAST_VERSION_CODE, 0);
    }

    public static void updateLastSeenVersion(Context context) {
        try {
            SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
            int currentVersionCode = context.getPackageManager()
                    .getPackageInfo(context.getPackageName(), 0)
                    .versionCode;
            preferences.edit().putInt(LAST_VERSION_CODE, currentVersionCode).commit();
        } catch (PackageManager.NameNotFoundException e) {
            throw new AssertionError(e);
        }
    }
}
